作者:Gaik B. Kok、Peter J. Scammells
DOI:10.1016/j.bmcl.2010.06.031
日期:2010.8
ferrocene has been found to be a convenient and efficient catalyst for the N-demethylation of a number of N-methyl alkaloids such as opiates and tropanes. By judicious choice of solvent, good yields have been obtained for dextromethorphan, codeine methyl ether, and thebaine. The current methodology is also successful for the N-demethylation of morphine, oripavine, and tropane alkaloids, producing the corresponding
在Polonovski-型条件下,发现二茂铁是一种方便有效的催化剂,可用于许多N-甲基生物碱(如鸦片剂和托烷)的N-脱甲基化。通过明智地选择溶剂,右美沙芬,可待因甲醚和蒂巴因获得了良好的收率。当前的方法学还成功地用于吗啡,奥利巴韦和托烷生物碱的N-去甲基化,以合理的收率生产相应的N -nor化合物。关键的药物中间体,如羟考酮和羟吗啡酮也很容易使用这种方法进行N-去甲基化。